"If people want to typecast me they can, I can sit and have me egg sandwich and not really give a damn about it," said Smith. "It's up to others."

Of his future on the sci-fi drama, the 30-year-old added: "I take it year by year, you know? See what comes. I love working for Steven Moffat. I love making the show, it's unlike any job I'll ever have."

Smith also briefly discussed Doctor Who's 2012 Christmas special, which will see new companion actress Jenna-Louise Coleman return to the show following her surprise appearance in 'Asylum of the Daleks'.

"We've got Vastra, Jenny and Strax making a return appearance which is terribly exciting," he said. "And it does the sort of wonderful Doctor Who-ey Christmas things - you know, snow, aliens, good will, good cheer, someone trying to take over the world. Hopefully it makes for good Christmas Day telly."

Following the festive special, Doctor Who will return to BBC One in 2013 with eight new episodes.